.nav_suoyin {
    width: 20%;
    float: left;
}

.nav_suoyin ul li {
    border-left: 1px solid #e7e7e7;
    border-right: 1px solid #e7e7e7;
    border-bottom: 1px solid #e7e7e7;
    border-radius: 3px;
    letter-spacing: 1px;
    width: 100%;
    height: 100%;
    float: left;
    padding: 15px 0;
}


.news-content-detail{
}

.product-content-detail{
}

.company-content-detail{
}